The 13 housemates will star in a special 10pm show on Channel 5, which will feature the first round of nomination votes from the series.
[Celebrity Big Brother Day 1 - Photo Gallery]
Tensions have already begun to surface in the house with the first rivalry between Jasmine Lennard and Danica Thrall.
Jasmine has accused Danica of "playing games" with the men of the house.
Celebrity Big Brother continues daily on Channel 5.